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Re: was: Pterosaur.net now: pteroid

To: "jrc" <jrccea@bellsouth.net>
Subject: Re: was: Pterosaur.net now: pteroid
From: David Peters <davidpeters@att.net>
Date: Sat, 16 Jan 2010 09:31:29 -0600
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Cc: "Augusto Haro" <augustoharo@gmail.com>, "Mark Witton" <Mark.Witton@port.ac.uk>, <pterosaur.net@googlemail.com>
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> 
On Jan 16, 2010, at 9:14 AM, jrc wrote:
>> 
> 
> This is something of a digression, but the base of the quetz pteroid does not 
> resemble a ball joint.  It is a clearly defined hinge joint vaguely 
> reminiscent of a knee joint but with somewhat more lateral mobility than a 
> knee.  I think it might be a mistake to treat the pteroid articulation 
> generically as a ball joint.
> JimC
> 
> 
Indeed. As others have shown, nearly every pteroid has a distinct shape. In 
addition, some have a ball joint articulation. In others it is flat. And 
everything in between.

David

References:
- re: Pterosaur.net
  - From: David Peters <davidpeters@att.net>
- Re: Pterosaur.net
  - From: "Mark Witton" <Mark.Witton@port.ac.uk>
- was: Pterosaur.net now: pteroid
  - From: David Peters <davidpeters@att.net>
- Re: was: Pterosaur.net now: pteroid
  - From: "Mark Witton" <Mark.Witton@port.ac.uk>
- Re: was: Pterosaur.net now: pteroid
  - From: David Peters <davidpeters@att.net>
- Re: was: Pterosaur.net now: pteroid
  - From: "jrc" <jrccea@bellsouth.net>
- Re: was: Pterosaur.net now: pteroid
  - From: Augusto Haro <augustoharo@gmail.com>
- Re: was: Pterosaur.net now: pteroid
  - From: "jrc" <jrccea@bellsouth.net>
- Re: was: Pterosaur.net now: pteroid
  - From: Augusto Haro <augustoharo@gmail.com>
- Re: was: Pterosaur.net now: pteroid
  - From: David Peters <davidpeters@att.net>
- Re: was: Pterosaur.net now: pteroid
  - From: Augusto Haro <augustoharo@gmail.com>
- Re: was: Pterosaur.net now: pteroid
  - From: David Peters <davidpeters@att.net>
- Re: was: Pterosaur.net now: pteroid
  - From: "jrc" <jrccea@bellsouth.net>

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